37 CFR § 1.143
Reconsideration of requirement
November 5, 2020
If the applicant disagrees with the requirement for restriction, he may request reconsideration and withdrawal or modification of the requirement, giving the reasons therefor. (See §1.111.) In requesting reconsideration the applicant must indicate a provisional election of one invention for prosecution, which invention shall be the one elected in the event the requirement becomes final The requirement for restriction will be reconsidered on such a request. If the requirement is repeated and made final the examiner will at the same time act on the claims to the invention elected.